Al•va•ra•do(äl′vä rä′ᵺô),USA pronunciationn.A•lon•so de(ä lôn′sô ᵺe),USA pronunciation c1490–1554, Spanish soldier in the conquests of Mexico and Peru: governor of Cuzco 1552?–54.Pe•dro de(pe′ᵺrô ᵺe),USA pronunciation 1495–1541, Spanish soldier: chief aide of Cortés in conquest of Mexico; governor of Guatemala 1530–34.